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Join Date: Apr 2004
Location: Helena Alabama
Posts: 49
CIS Heads??

Needs help to ID these heads on Ebay:

http://cgi.ebay.com/ebaymotors/Porsche-911-T-2-4L-Heads-1973-5-CIS-NR-914_W0QQitemZ8001969883QQcategoryZ33617QQrdZ1QQcmd ZViewItem

These are listed as 73 and a half cis heads. These look like MFI heads to me, can anyone confirm or deny?

Thx!


Last edited by James Renfroe; 09-26-2005 at 03:25 PM..
Old 09-26-2005, 04:44 AM
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Join Date: Oct 2001
Location: Westford, MA USA
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The link doesn't seem to work at the eBay end.
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'69 911E

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Old 09-26-2005, 05:44 AM
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Join Date: May 2005
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On the 73.5 2.4T's, the injectors plug directly to the heads like the MFI cars (or at least they do on mine).

I believe this changed for the 2.7 CIS models where they moved the injectors to the inlet manifold.

From studying Bruce Andersons book, I'm sure the 73.5 CIS heads also have a unique (smaller) inlet and exhaust port diameter.

Old 09-26-2005, 06:20 AM
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